Home / 101,725.60-140,395.86-56,413.66

Finding the Fourth Proportional to 101,725.60, 140,395.86 and 56,413.66

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Solution

The fourth proportional to 101,725.60, 140,395.86 and 56,413.66 is: 77,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,725.60 : 140,395.86 = 56,413.66 : x
  2. Step 2: Convert to fraction form
    101,725.60/140,395.86 = 56,413.66/x
  3. Step 3: Cross multiply
    101,725.60x = 140,395.86 × 56,413.66
  4. Step 4: Simplify right side
    101,725.60x = 7,920,244,311.45
  5. Step 5: Solve for x
    x = 7,920,244,311.45/101,725.60
  6. Step 6: Final answer
    x = 77,858.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.